BUG: Dentry ffff8881ecabddd0{i=0,n=.index} still in use (1) [unmount of vfat loop0] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 0 PID: 333 Comm: syz-executor145 Not tainted 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecabddd0 FS: 0000000001c72300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RAX: 0000000000000000 RBX: 0000000000007bf2 RCX: 0000000000446247 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 0000000000000001 ---[ end trace c5dbeec659647b32 ]--- VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... BUG: Dentry ffff8881ecbdbaa0{i=0,n=.index} still in use (1) [unmount of vfat loop0] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 0 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbdbaa0 FS: 0000000001c72300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000008090 RCX: 0000000000446247 RDX: 00007ffd159dd2b9 RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 0000000000000003 ---[ end trace c5dbeec659647b33 ]--- VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... WARNING: CPU: 1 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 1 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff8881f4fd4420 R08: ffffffff814e90a7 R09: ffffed103ede9608 R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbe9aa0 FS: 0000000001c72300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00000000000083b5 RCX: 0000000000446247 RDX: 00007ffd159dd2b9 RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 0000000000000004 ---[ end trace c5dbeec659647b34 ]--- WARNING: CPU: 1 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 1 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff8881f43ca420 R08: ffffffff814e90a7 R09: ffffed103ede9608 R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecb7d330 FS: 0000000001c72300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00000000000086b2 RCX: 0000000000446247 RDX: 00007ffd159dd2b9 RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 0000000000000005 ---[ end trace c5dbeec659647b35 ]--- BUG: Dentry ffff8881ecbfb770{i=0,n=.index} still in use (1) [unmount of vfat loop0] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 1 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 RBP: ffff8881f43c9420 R08: ffffffff814e90a7 R09: ffffed103ede9608 R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbfb770 FS: 0000000001c72300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000008981 RCX: 0000000000446247 RDX: 00007ffd159dd2b9 RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 0000000000000006 ---[ end trace c5dbeec659647b36 ]--- WARNING: CPU: 1 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 1 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff8881f05e6420 R08: ffffffff814e90a7 R09: ffffed103ede9608 R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbdebb0 FS: 0000000001c72300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000008c7a RCX: 0000000000446247 RDX: 00007ffd159dd2b9 RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 0000000000000007 ---[ end trace c5dbeec659647b37 ]--- WARNING: CPU: 1 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 1 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff8881ef483420 R08: ffffffff814e90a7 R09: ffffed103ede9608 R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e5c87cc0 FS: 0000000001c72300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000009147 RCX: 0000000000446247 RDX: 00007ffd159dd2b9 RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 0000000000000009 ---[ end trace c5dbeec659647b38 ]--- Modules linked in: CPU: 0 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RBP: ffff8881f0ab6420 R08: ffffffff814e90a7 R09: ffffed103edc9608 R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e5c84cc0 FS: 0000000001c72300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00000000000095d9 RCX: 0000000000446247 RDX: 00007ffd159dd2ba RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 000000000000000b ---[ end trace c5dbeec659647b39 ]--- VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... WARNING: CPU: 0 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 0 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RBP: ffff8881f0ab4420 R08: ffffffff814e90a7 R09: ffffed103edc9608 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbd5220 FS: 0000000001c72300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000009c11 RCX: 0000000000446247 RDX: 00007ffd159dd2ba RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 000000000000000e ---[ end trace c5dbeec659647b3a ]--- VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... WARNING: CPU: 1 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 1 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff8881f50f4420 R08: ffffffff814e90a7 R09: ffffed103ede9608 R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbf5550 FS: 0000000001c72300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd159dcf98 CR3: 00000001e5886000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366 cleanup_mnt+0x432/0x4e0 fs/namespace.c:1102 task_work_run+0x186/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446247 Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd159dd1f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000009f2f RCX: 0000000000446247 RDX: 00007ffd159dd2ba RSI: 0000000000000002 RDI: 00007ffd159dd2b0 RBP: 00007ffd159dd2b0 R08: 00000000ffffffff R09: 00007ffd159dd090 R10: 0000000001c73663 R11: 0000000000000202 R12: 00007ffd159de330 R13: 0000000001c735f0 R14: 00007ffd159dd220 R15: 000000000000000f ---[ end trace c5dbeec659647b3b ]--- WARNING: CPU: 1 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 fs/dcache.c:1588 Modules linked in: CPU: 1 PID: 333 Comm: syz-executor145 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x179/0x1c0 fs/dcache.c:1588 Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff RSP: 0018:ffff8881e9927c58 EFLAGS: 00010282 RAX: 0000000000000054 RBX: ffffffff85fc5d00 RCX: 25ec3665ae301500 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff8881f50f1420 R08: ffffffff814e90a7 R09: ffffed103ede9608 R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e5c2dee0 FS: 0000000001c72300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f64c35c8000 CR3: 00000001e5886000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x2d9/0x540 fs/dcache.c:1307 do_one_tree fs/dcache.c:1604 [inline] shrink_dcache_for_umount+0x8a/0x1a0 fs/dcache.c:1620 generic_shutdown_super+0x63/0x2a0 fs/super.c:447 kill_block_super+0x79/0xd0 fs/super.c:1444 deactivate_locked_super+0xaf/0x100 fs/super.c:335 deactivate_super+0x1b3/0x270 fs/super.c:366